This is the original set of questions and answer explanations for the SAPIX Open for Determining Passing Ability, 4th Session (held December 3, 2023). Materials showing average scores and correct answer rates are also included. While any writing has been erased with an eraser, please refrain from purchasing if you are concerned about minor details, as this was actually used by a child. Also, as this is a copyable product, returns are not accepted after purchase.